check_dnssec is a set of Nagios plugins to monitor DNSSEC services/zones. check_dnssec is based on ldns, a low-level DNS(SEC) library. check_dnssec_expiration checks if a domain is signed and the signature is not exited or expiring soon. check_dnssec_trace checks if a domain can trust traces from a domain with a trust-anchor. check_dnssec_trust_anchor checks if all trust anchors in a file are valid.

OpenDNSSEC is software that manages the security of domain names on the Internet. The project intends to drive adoption of Domain Name System Security Extensions (DNSSEC) to further enhance Internet security.

phpDNSAdmin is a highly modular Web-based DNS administration interface. It supports multiple types of modules for various DNS server backends and different modules for authentication and authorization data. To be fully customizable, it is also template based.

Unbound is a validating, recursive, and caching DNS resolver. It is designed as a set of modular components so that DNSSEC (secure DNS) validation and stub-resolvers (that do not run as a server, but are linked into an application) are easy to implement.

Phreebird is a DNSSEC proxy that operates in front of an existing DNS server (such as BIND, Unbound, PowerDNS, Microsoft DNS, or QIP) and supplements its records with DNSSEC responses. Features of Phreebird include automatic key generation, realtime record signing, support for arbitrary responses, zero configuration, NSEC3 "White Lies", caching and rate limiting to deter DoS attacks, and experimental support for both Coarse Time over DNS and HTTP Virtual Channels. The suite also contains a large amount of sample code, including support for federated identity over OpenSSH. Finally, "Phreeload" enhances existing OpenSSL applications with DNSSEC support.

ecca-proxy is a Web proxy server that transparently handles Eccentric Authentication key and certificate management. Eccentric Authentication is a protocol designed to make using client certificates easy, secure, and private. The proxy handles the difficult cryptographic details and provides an easy to use interface to the user.